40026143010121 has 4 divisors (see below), whose sum is σ = 40026216165012. Its totient is φ = 40026069855232.

The previous prime is 40026143010101. The next prime is 40026143010241. The reversal of 40026143010121 is 12101034162004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8578666092096 + 31447476918025 = 2928936^2 + 5607805^2 .

It is a cyclic number.

It is not a de Polignac number, because 40026143010121 - 2⁹ = 40026143009609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40026143010101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35750500 + ... + 36853093.

It is an arithmetic number, because the mean of its divisors is an integer number (10006554041253).

Almost surely, 2^{40026143010121} is an apocalyptic number.

It is an amenable number.

40026143010121 is a deficient number, since it is larger than the sum of its proper divisors (73154891).

40026143010121 is an equidigital number, since it uses as much as digits as its factorization.

40026143010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73154890.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 40026143010121 its reverse (12101034162004), we get a palindrome (52127177172125).

The spelling of 40026143010121 in words is "forty trillion, twenty-six billion, one hundred forty-three million, ten thousand, one hundred twenty-one".